Study on the optimization of mix ratio of alkali slag cementitious concrete
ZHANG Shuwen
WAN Xiaomei
ZHAO Tiejun
LI Qiuyi
YU Qi
CHENG Yangjie
ZHANG Yu
Abstract：In order to optimizing mix proportion of alkali-activated slag cementitious composite with water glass as an activa-tor,a series of orthogonal tests of three factors and three levels were carried out. The 28 d compressive strengths of specimens were evaluated,and three factors of modulus of water glass,equivalent concentration of alkali solution and slag content were controlled in the orthogonal test. It can be obtained from the results that the order of factors affecting strength are:equivalent concentration of alkali solution>modulus of water glass>slag content. It is also found that,when the equivalent concentration of alkali solution is higher than 5% and the modulus of water glass is higher than 1.5,the strength of concrete increases with equivalent concentration of alkali and modulus of water glass,while the strength of concrete decreases with increasing slag content when the dosage is more than 350 kg/m3.
Keywords：alkali activatoralkali-activated slag concretemix designorthogonal test
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )